[HHusky]

they told me that they opened a report and after I fill up a statement they  will controll everything and eventually will give me a replacement if the product is still available or a refund

It's good that they're working towards a replacement/refund.

What type of document Is It?

They told me they will send an email with a declaration that I need to fill so from that they con proceed with the investigation. They didn't send anything yet but I think it's normal since it's Sunday. Eventually I told them that I need the pc asap because my brother is graduating and he deserves a new machine and they told me to not worry since we are "protected"